Aspect Ratios to Use for WhatsApp Sharing

Updated June 17, 2026 · 7 min read

Aspect ratio is the shape of the image, and the wrong one leads to awkward crops. Sharing a pre-compressed photo means you decide how it looks instead of letting the app re-encode it on its own terms.

Recommended settings for WhatsApp sharing

SettingStarting point
FormatJPEG (WebP where accepted)
Widthabout 1600 px on the long edge
Quality78
File size300 KB or less

These are practical defaults. If the platform or form you are using publishes its own limits, follow those instead.

Aspect Ratios to Use

Common ratios are 1:1 square, 4:5 portrait, 3:2 classic photo and 16:9 widescreen. Pick the one that matches where the image will be displayed for WhatsApp sharing.

Crop to the ratio first, then resize to about 1600 pixels on the long edge and compress. Cropping last can undo your careful sizing.

Step by step with TheCompressJPEG

  1. Open the compress JPEG to 300 KB tool, or the main compressor for custom settings.
  2. Drop in your image. Nothing is uploaded; it is processed in your browser.
  3. Set the maximum width to 1600 and the target size to 300 KB.
  4. Press Compress, check the result and download it.
Ready to try it? Compress your JPEG to 300 KB now. It's free and private.

Quick tips

  • Check the result on a phone, where most people will see it.
  • Use consistent dimensions for a set of related images.
  • Resize before you compress; it improves quality at any file size.
  • Write a size limit slightly below the stated maximum to leave a margin.

FAQ

What JPEG quality should I use for e-learning courses?

Quality around 78 keeps photos looking natural while cutting file size substantially.

Will compressing reduce image quality for e-learning courses?

Some detail is removed, but at sensible settings the difference is not visible at normal viewing size.

How do I compress many images for e-learning courses at once?

Drop all of them into the tool together and use Download all to get a single ZIP.

Wrapping up

For WhatsApp sharing, the reliable recipe is simple: resize to around 1600 pixels, compress at quality 78 or to a 300 KB target, and check the result before you upload. Keep the original so you can always start again.

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